Ben sweet



D. F. SWEET.

Heating Drum,

No. 89,701. Patented May 4, 1869.

y z m I k M769 dubbed satapuma (ti-flirt.

DANIEL F. SWEET, OF ()TSEGO, ASSIGNORTO HIMSELF AND REU- BEN SWEET, OF KALAMAZOO, MICHIGAN.

Letters Patent No. 89,701, dated Mary 4. 1869.

HEAT-RADIATOR.

The Schedule referred to in these Letters Patent and making part of the name.

' To whom it may concern.-

Be it known that I, DANIEL F. Swnn'r, of Otsego, in the county of Allegan, and State of Michigan, have inventeda new and useful Improvement in Heat-Radiators and I do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, and being a part of this specification, in which- Figure l is a perspective view of my radiator;

Figure 2 is a vertical section of the same;

Figurefi is a perspective view of the inner shell, removed from the case; and

Figure 4 is a top view of the damper and regulator.

Like letters indicate like parts in eaclrfigure.

The nature of this invention relates to an improve ment in heat-radiators attached to heating-stoves, and consists in the p cnliar construction of a drum surrounding a section of stove-pipe, which drum is pro-' vided with an internal annular chamber, around which are arranged several spiral flues, for compelling the heated products of combustion to pass upward, in close contact with the exterior shell; also, in an arrangement of pipes for conducting cold air, taken from near the door of an apartment, upward through the interior chambcr of the radiator, where it is heated, and from whence it is discharged into the same or another apartment; also, in a new and peculiar arrangement and combination of the dampers and regulators, for regulating the draught of the stove, and directing the heat and smoke in their upward passage.

A, in the drawings, represents a section of stovepipe, terminating-in a cup, B, which is surmounted by an outer cylindrical case, or shell, 0.

Within this outer case is another cylinder, D, within which is still another, E, the latter being of the same diameter as the stove-pipe A The cylinders D and E are closed at the top'and bottom, by proper covers, forming within them the chamber, vF.

G is the bottom, and H, the top covers of the inner cylinders, and are provided with the lugs I and I, which project outward until they come in contact with wall of the case 0.

Secured to the lugs I and I are Archimedean blades, K, passing up and partially around the exterior of the case D.-

These blades are turned slightly upward and inward, so as to throw the heated products of combustion toward the outer case, 0, in their upward passage.

A small space is left between the outer edges of the spirals and the inner wall of the case 0, for the double purpose of'aflording a limited direct exit for the smoke, and, by the draught so obtained-to enhance the tendency of the heated currents to hug the outer case in their upward passage.

The lugs I, projecting from the cover H at the top, resemble, in shape, a Maltese cross, and occupy onehalf the space between the cylinders O and D.

L is a regulator-plate, corresponding in'shape to the top-plate H, and its lugs I, and rotates freely thereon.

It is provided with a toothed rack, a, with which engages a segmental pinion, b, on the shaftM, which passes through the inner pipe, E, and which shaft projects through the outer case 0, and has, on its outer end, an indexed hand-wheel, N, so that it may be turned when desired.

The shaft M has secured to it, within the inner pipe E, an ordinary butterfly-damper, O, for closing said pipe whennecessary.

The interior cylinders being in place within the case 0, by rotating the shaft M the openings at the top of the spiral passages may be opened or closed, to any desired extent, which being done, the damper 0 may be turned, to open or close the inner pipe E, to the direct upwardpassage of the heat and smoke, as may be necessary, independently of the position of the regulator-plate L.

The whole is surmounted by a removable cone, P, from which rises a section of stove-pipe, A.

By removing this cone, the interior drum may be withdrawn from the case 0, when necessary for clean- I ing it, or removing any obstructions accumulated therein.

Q is a pipe, whose lower end is near the floor of the room, where the air iscold, and its upper end enters the case G, near its bottom, and passes into the chamber F.

It is a delivery-pipe, issuing from the chamber F, on the opposite side, and near the top of the radiator, which delivers the air, drawn upon from the floor, and heated by its passage through the chamber, into the room, or the pipe It maybe extended, so as to conduct the air, so heated, into another apartment.

What I claim as myinvention, and desire to secure by Letters Patent, is-

The combination and arrangement of the removable cylinders D and E, provided with the lugs I and I and spiral deflectors K, and the pipes Q and It, in connec tion' with the shaft M, provided with the segmental pinion O, and damper O, regulator pIat'e L, and toothed'rack a, when used with the case 0, provided with the cup B, and movable cap P, substantially as and for the purpose aforesaid.

DANIEL F. SWEET.

Witnesses:

ALFRED B. F. PALMER, Gno. Donen. 

